Magadi, Lake məgä´dē [key], c.20 mi (30 km) long and 2 mi (3.2 km) wide, S Kenya, in the Great Rift Valley. Formed and constantly resupplied by volcanic springs, the lake has a thick crust of carbonate of soda. The crust is removed by a floating dredge and then pumped to refineries, where it is processed into soda ash (used in glassmaking).
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